Product Description
E4047 Aluminum-Silicon Welding Electrode
Product Description
E4047 is a high-silicon aluminum alloy electrode developed for welding and repair of aluminum-silicon castings and similar aluminum alloys. Its approximately 12% silicon content provides excellent fluidity, low shrinkage and smooth filling of repair areas.
Main Features
- High silicon content for excellent fluidity.
- Lower shrinkage than lower-silicon aluminum fillers.
- Suitable for cast aluminum and Al-Si alloy repair.
- Good filling characteristics for repair of cracks, cavities and cast defects.
Typical Applications
- Aluminum-silicon castings
- Engine blocks and cylinder heads
- Aluminum housings and machine parts
- Repair of cast aluminum components
Chemical Composition / Key Properties
| Item | Value |
| Si | 11.0–13.0% |
| Fe | ≤ 0.80% |
| Cu | ≤ 0.30% |
| Mn | ≤ 0.15% |
| Mg | ≤ 0.10% |
| Zn | ≤ 0.20% |
| Al | Balance |
